Engine

Copper-based material designed specifically for use with titanium valves in high performance applications Give the seat excellent thermal characteristics as well as resistance to corrosion and wear These seats are the result of a two year KPMI R&D effort...

All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance Made in the U.S.A.. YZ450 EXH GUIDE STD

All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance Made in the U.S.A.. YZ450 INT GUIDE STD

Kit includes 2 intake Viton« seals and 2 exhaust Viton« seals. SEAL VG 4/PK YZ250F 2019

For use with intake and exhaust valve guides Retain their ability to seal in adverse conditions PTFE seals feature a metal jacket with choker spring Made in the U.S.A.. SEAL VALVE STEM 4PK

Viton intake/exhaust seals Made in the U.S.A.. SEAL VG IN/EX YZ450 4/PK

Viton intake/exhaust seals Made in the U.S.A.. SEAL V.G. VITON 4/PK

All valve seals are made of 100% solid Viton« for long life Meet or exceed OEM specifications When using Kibblewhite spring kits, Kibblewhite valve seals must be used because of spring clearances Made in the U.S.A.. VALVE SEAL 7MM VITON

All valve seals are made of 100% solid Viton« for long life Meet or exceed OEM specifications When using Kibblewhite spring kits, Kibblewhite valve seals must be used because of spring clearances Made in the U.S.A.. VALVE SEAL 6.5MM VITON

All valve seals are made of 100% solid Viton« for long life Meet or exceed OEM specifications When using Kibblewhite spring kits, Kibblewhite valve seals must be used because of spring clearances Made in the U.S.A.. VALVE SEAL 6.0MM

All valve seals are made of 100% solid Viton« for long life Meet or exceed OEM specifications When using Kibblewhite spring kits, Kibblewhite valve seals must be used because of spring clearances Made in the U.S.A.. VALVE SEAL 5.5MM VITON

Seals sold each, in 25 packs and 100 packs Stem diameter 5/16"; guide o.d. .420" Seal driver and sleeves sold separately Made in the U.S.A.. SEAL VLV GD CRF450R 4/PK